Earth working – Diverse tools – Including tool rotatable about vertical axis
Patent
1976-07-07
1978-05-23
Johnson, Richard J.
Earth working
Diverse tools
Including tool rotatable about vertical axis
172175, 172526, 172739, A01B 2106
Patent
active
040905713
ABSTRACT:
An implement preferably has elongated, stationary beams that extend horizontally transverse to the normal direction of travel. Staggered soil cultivating rotors are fastened to the beams at spaced apart locations and are ground driven to work closely adjacent strips of soil or a single broad path. Each rotor is freely rotatable about an upwardly extending shaft and has downwardly extending soil working members, such as tines, with lower active portions. Each active portion can have a lower outwardly directed part that, during rotation, describes a circle having a radius about equal to or less than the length of the active portion. The outwardly directed tine part increases ground contact and improves rotation. The rotors can be mounted in pairs; the rotors of each pair being angled from the vertical so that they rotate in opposite directions from one another. The beams can be turned to a limited extent to change the working positions of the rotors and a supporting roller can be interconnected to the beams at the rear thereof to regulate the working depths of the soil working members.
REFERENCES:
patent: 329137 (1885-10-01), Campbell
patent: 1165213 (1915-12-01), Stubblefield
patent: 1797231 (1931-03-01), Herron
patent: 2699023 (1955-01-01), Caldwell
patent: 3131774 (1964-05-01), Lely
patent: 3138208 (1964-06-01), Simms
patent: 3306371 (1967-02-01), Bush
patent: 3774688 (1973-11-01), Lely et al.
patent: 3943999 (1976-03-01), Lely
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